Substrate and Habitat. On hardwood bark in forests.
Distribution. Endemic to eastern North America; in North Carolina common throughout.
Notes.Lecanora protervula has undergone multiple name changes, but is characteristic in having pale pruinose apothecia and distinctive chemistry. It has been assessed by the IUCN as of Least Concern (Lendemer 2022)
Brodo, I.M., M. Haldeman and J. Malíček. (2019) Notes on species of the Lecanora albella group (Lecanoraceae) from North America and Europe. The Bryologist122: 430-450.
Lendemer, J. (2022) Lecanora protervula. The IUCN Red List of Threatened Species 2022: e.T180096952A180097001. https://dx.doi.org/10.2305/IUCN.UK.2022-1.RLTS.T180096952A180097001.en .Accessed on 31 July 2022.
Lumbsch, H. T., M. Plumper, R. Guderley & G. B. Feige. (1997) The corticolous species of Lecanora sensu stricto with pruinose apothecial disks. Acta Universitatis Upsaliensis (Symbolae Botanicae Upsaliensis) 32: 131–162 (description as Lecanora subpallens).
Stirton, J. (1876) Lichens British and foreign. Transactions of the Glasgow Society of Field Naturalists4: 85–95 (original description).